Code
ADSP_W005
TESLA
Tesla Alert
Stack Overflow
Views:
UK: 30
EN: 46
RU: 34
AI status
Completed
Completed
100%
Causes
- Software bug (infinite recursion, unbounded allocations, or bad loop/call path)
- Insufficient task stack allocation in firmware/configuration
- Corrupted or incompatible firmware or calibration files
- Memory corruption due to failing RAM or solder/joint issues
- Power instability or brownouts causing corrupted execution state
- Third‑party software/aftermarket changes or interrupted update process
Symptoms
- Logged ADSP_W005 error entry in vehicle diagnostic logs
- Intermittent or consistent reboots/resets of affected module or vehicle subsystems
- Loss or degradation of functions served by the ADSP (infotainment, audio, or ADAS features depending on processor role)
- Frozen UI, stalled processes, or watchdog-triggered restarts
- Repeated occurrence after vehicle sleep/wake or after a specific user action
What to check
- Retrieve and save full diagnostic logs, crash dumps and recent event history from the vehicle before clearing codes
- Confirm current firmware/software version and recent OTA/service updates
- Check for related DTCs (communication, memory, or watchdog faults) and note their timestamps
- Verify battery/aux power stability and ground connections for the affected module
- Inspect module physical condition and connector seating for corrosion, damage, or looseness
- If available, check onboard stack-usage or diagnostic counters and memory-status telemetry
Signal parameters
- Task name / thread identifier where overflow occurred
- Stack pointer and stack usage high-water mark
- CPU load (%) and per-task CPU usage
- Available RAM and heap usage at time of fault
- Exception or crash code and call trace (stack dump)
- Module uptime and number of resets/watchdog events
Diagnostic algorithm
- Capture all relevant logs and stack dumps; do not clear until saved
- Reproduce the issue while logging if possible and note exact steps/events that trigger the fault
- Compare vehicle software/firmware versions to known-good baseline and check release notes for regressions
- If recent update occurred, perform software recovery or re-flash to the latest recommended or rollback firmware per manufacturer guidance
- Run memory and module self-tests if available; check RTC/battery power during tests
- Verify power and ground integrity to the module (measure voltages under load, inspect connectors)
- Check for corrupted configuration or persistent files and restore factory defaults where supported
- If software fixes and power checks do not resolve, consider hardware-level diagnostics (RAM/board inspection, reflow/replacement of module)
- If unresolved, escalate with vendor support providing saved logs, stack dumps, and reproduction steps
Likely causes
- Recent OTA or service firmware update introduced a regression
- Specific ADSP task receives unexpected large inputs or malformed data
- Corrupted persistent storage or config files causing abnormal code paths
- Intermittent power supply or ground issue causing memory corruption
- Hardware degradation (RAM or board-level defects) exposing latent software bug
Fault status
Status
Stack overflow detected in ADSP task; fault logged and module may have reset. Requires software review and verification of module memory and power integrity.
Repair difficulty: Medium
Diagnostic time: 1-4 hours
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